To attract new potential users, you need to rebrand and look in a completely different direction. Such coins are no longer interesting.
Maybe focus in one specific use case that people will be interested with. It is really hard to sustain a project with no use case in the market. Because if you will rely from traders only, they can just move on from one alt to another. And since you have no dedicated dev for this project, I don't think this will go far. We may be seeing another project that bites the dust of crypto.